In 1986 & 87, Buick used a roller cam in the Le Sabre and Park Avenue 3800 engines,
so you can use the "spider", "dog bones" & roller lifters from these 3800 series engines
in the 3.8's in our cars. (If you can find them?) I bought a set off the board,
so I am off & running with it. You only have to make up 2 spacers and drill &
tap 2 holes in the valley to bolt on the "spider" retainer. Pretty easy stuff.